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<head><meta charset="utf-8"><title>P-critical #73431 ICE: MIR const-checker found novel structu · t-compiler/wg-prioritization · Zulip Chat Archive</title></head>
<h2>Stream: <a href="https://rust-lang.github.io/zulip_archive/stream/227806-t-compiler/wg-prioritization/index.html">t-compiler/wg-prioritization</a></h2>
<h3>Topic: <a href="https://rust-lang.github.io/zulip_archive/stream/227806-t-compiler/wg-prioritization/topic/P-critical.20.2373431.20ICE.3A.20MIR.20const-checker.20found.20novel.20structu.html">P-critical #73431 ICE: MIR const-checker found novel structu</a></h3>

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<a name="201126413"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/227806-t-compiler/wg-prioritization/topic/P-critical%20%2373431%20ICE%3A%20MIR%20const-checker%20found%20novel%20structu/near/201126413" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> triagebot <a href="https://rust-lang.github.io/zulip_archive/stream/227806-t-compiler/wg-prioritization/topic/P-critical.20.2373431.20ICE.3A.20MIR.20const-checker.20found.20novel.20structu.html#201126413">(Jun 17 2020 at 10:59)</a>:</h4>
<p><span class="user-group-mention" data-user-group-id="2403">@WG-prioritization</span> issue <a href="https://github.com/rust-lang/rust/issues/73431">#73431</a> has been assigned <code>P-critical</code>.</p>



<a name="201132460"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/227806-t-compiler/wg-prioritization/topic/P-critical%20%2373431%20ICE%3A%20MIR%20const-checker%20found%20novel%20structu/near/201132460" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Léo Lanteri Thauvin <a href="https://rust-lang.github.io/zulip_archive/stream/227806-t-compiler/wg-prioritization/topic/P-critical.20.2373431.20ICE.3A.20MIR.20const-checker.20found.20novel.20structu.html#201132460">(Jun 17 2020 at 12:16)</a>:</h4>
<ul>
<li>ICE when matching with a trait constant</li>
<li>Beta regression caused by <a href="https://github.com/rust-lang/rust/issues/67343">#67343</a> (<span class="user-mention silent" data-user-id="118594">ecstatic-morse</span>)</li>
<li>Breaks previously accepted code, should be fixed and backported before it gets to stable</li>
</ul>



<a name="201178335"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/227806-t-compiler/wg-prioritization/topic/P-critical%20%2373431%20ICE%3A%20MIR%20const-checker%20found%20novel%20structu/near/201178335" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/227806-t-compiler/wg-prioritization/topic/P-critical.20.2373431.20ICE.3A.20MIR.20const-checker.20found.20novel.20structu.html#201178335">(Jun 17 2020 at 18:01)</a>:</h4>
<p>added this to the agenda</p>



<hr><p>Last updated: Aug 07 2021 at 22:04 UTC</p>
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